mirror of
https://github.com/morpheus65535/bazarr
synced 2024-12-27 18:17:46 +00:00
118 lines
3.2 KiB
Python
118 lines
3.2 KiB
Python
from .core import encode, decode, alabel, ulabel, IDNAError
|
|
import codecs
|
|
import re
|
|
|
|
_unicode_dots_re = re.compile(u'[\u002e\u3002\uff0e\uff61]')
|
|
|
|
class Codec(codecs.Codec):
|
|
|
|
def encode(self, data, errors='strict'):
|
|
|
|
if errors != 'strict':
|
|
raise IDNAError("Unsupported error handling \"{0}\"".format(errors))
|
|
|
|
if not data:
|
|
return "", 0
|
|
|
|
return encode(data), len(data)
|
|
|
|
def decode(self, data, errors='strict'):
|
|
|
|
if errors != 'strict':
|
|
raise IDNAError("Unsupported error handling \"{0}\"".format(errors))
|
|
|
|
if not data:
|
|
return u"", 0
|
|
|
|
return decode(data), len(data)
|
|
|
|
class IncrementalEncoder(codecs.BufferedIncrementalEncoder):
|
|
def _buffer_encode(self, data, errors, final):
|
|
if errors != 'strict':
|
|
raise IDNAError("Unsupported error handling \"{0}\"".format(errors))
|
|
|
|
if not data:
|
|
return ("", 0)
|
|
|
|
labels = _unicode_dots_re.split(data)
|
|
trailing_dot = u''
|
|
if labels:
|
|
if not labels[-1]:
|
|
trailing_dot = '.'
|
|
del labels[-1]
|
|
elif not final:
|
|
# Keep potentially unfinished label until the next call
|
|
del labels[-1]
|
|
if labels:
|
|
trailing_dot = '.'
|
|
|
|
result = []
|
|
size = 0
|
|
for label in labels:
|
|
result.append(alabel(label))
|
|
if size:
|
|
size += 1
|
|
size += len(label)
|
|
|
|
# Join with U+002E
|
|
result = ".".join(result) + trailing_dot
|
|
size += len(trailing_dot)
|
|
return (result, size)
|
|
|
|
class IncrementalDecoder(codecs.BufferedIncrementalDecoder):
|
|
def _buffer_decode(self, data, errors, final):
|
|
if errors != 'strict':
|
|
raise IDNAError("Unsupported error handling \"{0}\"".format(errors))
|
|
|
|
if not data:
|
|
return (u"", 0)
|
|
|
|
# IDNA allows decoding to operate on Unicode strings, too.
|
|
if isinstance(data, unicode):
|
|
labels = _unicode_dots_re.split(data)
|
|
else:
|
|
# Must be ASCII string
|
|
data = str(data)
|
|
unicode(data, "ascii")
|
|
labels = data.split(".")
|
|
|
|
trailing_dot = u''
|
|
if labels:
|
|
if not labels[-1]:
|
|
trailing_dot = u'.'
|
|
del labels[-1]
|
|
elif not final:
|
|
# Keep potentially unfinished label until the next call
|
|
del labels[-1]
|
|
if labels:
|
|
trailing_dot = u'.'
|
|
|
|
result = []
|
|
size = 0
|
|
for label in labels:
|
|
result.append(ulabel(label))
|
|
if size:
|
|
size += 1
|
|
size += len(label)
|
|
|
|
result = u".".join(result) + trailing_dot
|
|
size += len(trailing_dot)
|
|
return (result, size)
|
|
|
|
|
|
class StreamWriter(Codec, codecs.StreamWriter):
|
|
pass
|
|
|
|
class StreamReader(Codec, codecs.StreamReader):
|
|
pass
|
|
|
|
def getregentry():
|
|
return codecs.CodecInfo(
|
|
name='idna',
|
|
encode=Codec().encode,
|
|
decode=Codec().decode,
|
|
incrementalencoder=IncrementalEncoder,
|
|
incrementaldecoder=IncrementalDecoder,
|
|
streamwriter=StreamWriter,
|
|
streamreader=StreamReader,
|
|
)
|